Magnetic, transport, and thermal properties of the half-Heusler compounds ErPdSb and YPdSb

Gofryk, K.; Kaczorowski, D.; Plackowski, T.; Mucha, J.; Leithe‐Jasper, Andreas; Schnelle, Walter; Grin, Yu.

doi:10.1103/physrevb.75.224426

Cited by 76 publications

(67 citation statements)

References 45 publications

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“…Magnetic measurements show that ErPdSb is paramagnetic while YPdSb is a weak diamagnet [378]. The studies show that CePdSb, GdPdSb, ErPdSb and YPdSb are half metallic in RPdSb series.…”

Section: Rpdx Compoundsmentioning

confidence: 85%

“…The thermal expansion coefficient of CePdSb shows no feature at TC (17 K) but shows a broad peak near 10 K, while no unusual behavior has been shown by zero field Sb NMR [593]. The Seebeck coefficient was found to be positive for RPdSb (Y, Er), which shows holes are dominant carriers in these compounds [378]. The Hall effect measurements show semimetallic character of the electrical conductivity with holes as majority carriers, which may be due to the presence of some acceptor levels just above the valence band created by atomic disorder [378].…”

Section: Thermopower Thermal Expansion and Hall Measurementsmentioning

confidence: 86%

“…Band structure calculations reveal that GdPdSb is a half metallic ferromagnet [377]. Both ErPdSb and YPdSb show semimatellic or narrow gap semiconducting behavior [378]. Electronic band structures show formation of narrow gaps in ErPdSb and YPdSb compounds.…”

Section: Electronic Structure Calculations and Electron Spectroscopymentioning

confidence: 97%

“…Two anomalies are observed in GdPdSb resistivity data, which corresponds to magnetic transitions [377]. The electrical resistivity shows a metallic nature at low temperatures and activated behavior at high temperature for ErPdSb, while it shows semiconducting behavior in the whole temperature range under study for YPdSb [378].…”

Section: Magneto-transport Propertiesmentioning

confidence: 98%

“…The Seebeck coefficient was found to be positive for RPdSb (Y, Er), which shows holes are dominant carriers in these compounds [378]. The Hall effect measurements show semimetallic character of the electrical conductivity with holes as majority carriers, which may be due to the presence of some acceptor levels just above the valence band created by atomic disorder [378]. The large TEP together with optimal carrier concentration make RPdSb (R=Y, Er) compounds promising for thermoelectric applications [378].…”

Section: Thermopower Thermal Expansion and Hall Measurementsmentioning

confidence: 99%

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Review on magnetic and related properties of RTX compounds

Gupta

Суреш

2015

Journal of Alloys and Compounds

262

124

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RTX (R=rare earths, T= 3d/4d/5d, transition metals such as Sc, Ti, Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Ag, Os, Ir, Pt, Au, and X=p-block elements such as Al, Ga, In, Si, Ge, Sn, As, Sb, Bi) series is a huge family of intermetallics compounds. These compounds crystallize in different crystal structures depending on the constituents. Though these compounds have been known for a long time, they came to limelight recently in view of the large magnetocaloric effect (MCE) and magnetoresistance (MR) shown by many of them. Most of these compounds crystallize in hexagonal and tetragonal crystal structures. Some of them show crystal structure modification with annealing temperature; while a few of them show iso-structural transition in the paramagnetic regime. Their magnetic ordering temperatures vary from very low temperatures to temperatures well above room temperature (~510 K). Depending on the crystal structure, they show a variety of magnetic and electrical properties.These compounds have been characterized by means of a variety of techniques/measurements such as x-ray diffraction, neutron diffraction, magnetic properties, heat capacity, magnetocaloric properties, electrical resistivity, magnetoresistance, thermoelectric power, thermal expansion, Hall effect, optical properties, XPS, Mössbauer spectroscopy, ESR, μSR, NMR, NQR etc. Some amount of work on theoretical calculations on electronic structure, crystal field interaction and exchange interactions has also been reported. The interesting aspect of this series is that they show a variety of physical properties such as Kondo effect, heavy fermion behavior, spin glass state, intermediate valence, superconductivity, multiple magnetic transitions, metamagnetism, large MCE, large positive as well as negative MR, spin orbital compensation, magnetic polaronic behavior, pseudo gap effect etc.Except Mn, no other transition metal in these compounds possesses considerable magnetic moments.Because of this RMnX compounds in general have high ordering temperatures. Interstitial modification using hydrogen and nitrogen is found to alter their crystal structures and magnetic properties considerably. RTX compounds also show interesting pressure effects on their structural and magnetic properties. In summary, these compounds show variety of physical properties over a wide range of temperatures. This review is intended to cover all the important results obtained in this family, particularly in the last few years.

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“…Magnetic measurements show that ErPdSb is paramagnetic while YPdSb is a weak diamagnet [378]. The studies show that CePdSb, GdPdSb, ErPdSb and YPdSb are half metallic in RPdSb series.…”

Section: Rpdx Compoundsmentioning

confidence: 85%